The 8-inch ductile iron pipe is a cornerstone of modern water and wastewater systems, combining unmatched strength, corrosion resistance, and longevity. Designed to meet global infrastructure demands, this pipe is trusted by engineers in over 50 countries for its reliability and compliance with ISO, ASTM, and EN standards.
Material & Manufacturing Excellence
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Core Material: Ductile iron (also called nodular cast iron) with ≥95% iron content, enhanced with magnesium for 10-15% elongation capacity (vs. 3-5% in traditional cast iron).
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Protection: Standard zinc coating (130g/m²) + epoxy lining for corrosion resistance. Optional polyurethane coating for extreme environments.
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الشهادات: ISO 2531, EN 545, ASTM A536, and BS 4772 compliant.
التطبيقات
| Sector | حالة الاستخدام | Key Benefit |
|---|---|---|
| Municipal | توزيع مياه الشرب | Leak-free joints ensure 99.9% efficiency |
| Industrial | Cooling water systems | Withstands pressures up to 350 psi |
| Agriculture | Irrigation networks | Resists soil abrasion & UV exposure |
| مياه الصرف الصحي | Sewage pipelines | Anti-microbial lining prevents clogging |
Model Specifications & Pricing Comparison
(All models: 8″ nominal diameter, 20ft length)
| الطراز | سُمك الجدار (مم) | تصنيف الضغط (رطل لكل بوصة مربعة) | Price (USD/unit) |
|---|---|---|---|
| DI-8A | 6.3 | 250 | $145 |
| DI-8B | 7.1 | 300 | $162 |
| DI-8C | 8.0 | 350 | $180 |
| Competitor X | 6.0 | 200 | $155 |
Note: Prices vary by region and order volume. Custom coatings incur +15-20% cost.
Lifespan & ROI
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Design Life: أكثر من 100 عام with proper installation (per ISO 2531 accelerated aging tests).
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Case Study: Mexico City’s 2015 water network upgrade saw 0.2% annual failure rate vs. 5% for PVC pipes.
التركيب والتوصيل
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الأنواع المشتركة:
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Push-Fit TYTON®: Quick installation (30 mins/joint), no welding.
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ذو حواف: Ideal for high-vibration industrial zones.
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عمق الخندق: Minimum 1.2m, compatible with horizontal directional drilling (HDD).
Global Standards Compliance
| المنطقة | المعايير | Key Requirement |
|---|---|---|
| الاتحاد الأوروبي | EN 545, EN 598 | Lead-free lining, sustainable sourcing |
| الولايات المتحدة الأمريكية | ASTM A536, AWWA C151 | Earthquake resistance (Zone 4+ seismic) |
| آسيا | JIS G5527, GB/T 13295 | High-sulfur soil compatibility |
المزايا الرئيسية
✅ قوة فائقة: 2x tensile strength of cast iron (60k psi vs. 25k psi).
✅ Eco-Friendly: 100% recyclable, reduces carbon footprint by 30% vs. HDPE.
✅ Low Maintenance: Zero leaks with rubber-sealed joints (tested to 500k cycles).
الأسئلة الشائعة
Q: How does ductile iron compare to PVC?
A: Ductile iron offers 3x longer lifespan, 5x higher crush resistance, and superior fire safety.
Q: Can it handle high-temperature fluids?
A: Yes, safe for fluids up to 120°C (248°F) with epoxy lining.
Q: Lead time for bulk orders?
A: 4-6 weeks for 500+ units, ex-stock availability in USA/EU warehouses.
Success Stories
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Singapore NEWater Project: 120km network using DI-8B pipes reduced maintenance costs by 40% (2018–2023).
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California Drought Response: 8-inch DI pipes deployed in 2022 sustain 2M gallons/day irrigation with zero leaks.
📺Installation Video Guide
For a visual guide on installing 8-inch ductile iron pipes, refer to the following video:
Request a Quote or Sample
Contact our team for region-specific pricing, CAD drawings, or third-party test reports.
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